特厚煤层综放开采出水压架预警机制及防治体系
|
摘要
为了有效防治综放开采出水压架事故,以崔木煤矿综放工作面的矿压、水文、支架等为研究对象,得到了包括工作面压力上限、长观孔水位降速、支架异常状态、煤壁片帮和煤炮宏观表现、瓦斯释放速率突增等出水压架前兆信息,提出了以4个主要指标、2个辅助指标为核心的出水压架联合预警机制,并构建了基于危险区域划分、出水压架预警机制和具体防治措施的压架综合防治技术体系。实践结果表明,工作面不再发生压架,实现了矿井的安全高效回采。
In order to control water bursting and supports crushing accident effectively in fully mechanized caving face,taking the rock pressures,hydrology conditions,hydraulic supports and so on in fully mechanized caving face of Cuimu Coal Mine as the study objects,some precursor information of water bursting and supports crushing were researched,including upper mining pressure limit,the descent speed of water level in long-time observation hole,abnormal conditions of supports,coal wall caving,macroscopic behavior of rock burst and a burst of gas release rate.Joint early warning mechanism of water bursting and supports crushing was put forward which took four main indicators and two auxiliary indicators as the core,and integrated control technique system with control measures was built based on classification of hazardous areas,early warning mechanism of water bursting and supports crushing.The practice results showed that supports crushing did not happen again in the mining face,and safe and high-efficiency mining was achieved finally.
In order to control water bursting and supports crushing accident effectively in fully mechanized caving face,taking the rock pressures,hydrology conditions,hydraulic supports and so on in fully mechanized caving face of Cuimu Coal Mine as the study objects,some precursor information of water bursting and supports crushing were researched,including upper mining pressure limit,the descent speed of water level in long-time observation hole,abnormal conditions of supports,coal wall caving,macroscopic behavior of rock burst and a burst of gas release rate.Joint early warning mechanism of water bursting and supports crushing was put forward which took four main indicators and two auxiliary indicators as the core,and integrated control technique system with control measures was built based on classification of hazardous areas,early warning mechanism of water bursting and supports crushing.The practice results showed that supports crushing did not happen again in the mining face,and safe and high-efficiency mining was achieved finally.
引文
[1]张玉军,李凤明.高强度综放开采采动覆岩破坏高度及裂隙发育演化监测分析[J].岩石力学与工程学报,2011(S1)
[2]娄金福,许家林,王志刚等.祁东煤矿回采工作面压架机理探讨[J].煤炭科学技术,2007(8)
[3]吴玉华.祁东煤矿综采面压架事故机理与防治技术研究[J].矿压安全与环保,2006(5)
[4]李子明.8415综放工作面出水机理分析与及防治[J].煤炭技术,2003(3)
[5]王铁牛,郝洪海,种义锋等.厚煤层综放工作面水害综合分析与治理[J].煤炭科学技术,2006(11)
[6]陈兴海,张平松,吴荣新等.淮南潘谢矿区浅部煤层开采时压架致灾水文地质特征分析[J].中国煤炭地质,2012(11)
[7]王晓振,许家林,朱卫兵等.松散承压含水层水位变化与顶板来压的联动效应及其应用研究[J].岩石力学与工程学报,2011(9)
[8]刘生优.综放工作面上覆巨厚砂砾含水层的活动规律与控制关键技术研究[J].中国煤炭,2014(S1)
[9]戚春前.赵各庄矿煤炭深部开采与地表浅部地下水位变化规律探讨[J].中国煤炭,2011(1)
[2]娄金福,许家林,王志刚等.祁东煤矿回采工作面压架机理探讨[J].煤炭科学技术,2007(8)
[3]吴玉华.祁东煤矿综采面压架事故机理与防治技术研究[J].矿压安全与环保,2006(5)
[4]李子明.8415综放工作面出水机理分析与及防治[J].煤炭技术,2003(3)
[5]王铁牛,郝洪海,种义锋等.厚煤层综放工作面水害综合分析与治理[J].煤炭科学技术,2006(11)
[6]陈兴海,张平松,吴荣新等.淮南潘谢矿区浅部煤层开采时压架致灾水文地质特征分析[J].中国煤炭地质,2012(11)
[7]王晓振,许家林,朱卫兵等.松散承压含水层水位变化与顶板来压的联动效应及其应用研究[J].岩石力学与工程学报,2011(9)
[8]刘生优.综放工作面上覆巨厚砂砾含水层的活动规律与控制关键技术研究[J].中国煤炭,2014(S1)
[9]戚春前.赵各庄矿煤炭深部开采与地表浅部地下水位变化规律探讨[J].中国煤炭,2011(1)